Valve



FIG. 1 is a top, rear, left perspective view of the claimed design;

FIG. 2 is a bottom, front, right perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a left elevation view thereof;

FIG. 6 is a right elevation view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

In the drawings, the broken line showing portions of the valve depicts environment and forms no part of the claim. 

CLAIM We claim the ornamental design for a valve, as shown and described. 